Sliding wear of a self-mated thermally sprayed chromium oxide coating in a simulated PWR water environment

Ratia, V.L.; Zhang, D.; Daure, J.L.; Shipway, P.H.; McCartney, D.G.; Stewart, D.A.

doi:10.1016/j.wear.2018.12.058

The evolution of subsurface deformation and tribological degradation of a multiphase Fe-based hardfacing induced by sliding contact (2023)
Journal Article
Carrington, M., Daure, J., Utada, S., Ratia-Hanby, V., Shipway, P., Stewart, D., & McCartney, D. (2024). The evolution of subsurface deformation and tribological degradation of a multiphase Fe-based hardfacing induced by sliding contact. Materials Science and Engineering: A, 892, Article 146023. https://doi.org/10.1016/j.msea.2023.146023

Multiphase Fe-based hardfacing alloys, for example Tristelle 5183 Fe-21%Cr-10%Ni-7.5%Nb-5%Si-2%C in wt.%, are extensively used for tribological applications, including valves, bearings and drive mechanisms, where two surfaces are unavoidably subjecte... Read More about The evolution of subsurface deformation and tribological degradation of a multiphase Fe-based hardfacing induced by sliding contact.

Experimental and numerical investigations of sliding wear behaviour of an Fe-based alloy for PWR wear resistance applications (2023)
Journal Article
Bastola, A., McCarron, R., Shipway, P., Stewart, D., & Dini, D. (2024). Experimental and numerical investigations of sliding wear behaviour of an Fe-based alloy for PWR wear resistance applications. Wear, 540–541, Article 205186. https://doi.org/10.1016/j.wear.2023.205186

The excellent wear and corrosion resistance of Co-based alloys make them desirable for tribological applications in the nuclear industry. However, neutron activation of the Co-based alloys leads to significant occupational radiation doses. An alterna... Read More about Experimental and numerical investigations of sliding wear behaviour of an Fe-based alloy for PWR wear resistance applications.

Lifetime of MoS2 based DFL systems in fretting with and without a Cu-Ni-In under-layer: the dependence on the topography of the surface onto which the DFL is deposited (2023)
Journal Article
Laolu-Balogun, E., Owen, S., Booth, T., Pattinson, G., Shipway, P., & Voisey, K. (2023). Lifetime of MoS2 based DFL systems in fretting with and without a Cu-Ni-In under-layer: the dependence on the topography of the surface onto which the DFL is deposited. Tribology International, 188, Article 108863. https://doi.org/10.1016/j.triboint.2023.108863

The superior fretting performance of polymer-bonded MoS2-based dry film lubricant (DFL) coating on a plasma-sprayed Cu-Ni-In under-layer is well known. The Cu-Ni-In under-layer changes both the material and the topography of the sur... Read More about Lifetime of MoS2 based DFL systems in fretting with and without a Cu-Ni-In under-layer: the dependence on the topography of the surface onto which the DFL is deposited.

Galling of stainless steels as a function of test conditions in an ASTM G196-type test setup – The role of temperature, rotational velocity, interrupted rotation and rotational distance (2023)
Journal Article
Daure, J. L., Kóti, D., Carrington, M. J., McCartney, D. G., Stewart, D. A., & Shipway, P. H. (2023). Galling of stainless steels as a function of test conditions in an ASTM G196-type test setup – The role of temperature, rotational velocity, interrupted rotation and rotational distance. Wear, 524-525, Article 204804. https://doi.org/10.1016/j.wear.2023.204804

Austenitic stainless steels have attractive properties for use in corrosive environments, but their use in components where motion under load is experienced (such as valves) is limited by their poor galling behaviour. Whilst stainless steels with imp... Read More about Galling of stainless steels as a function of test conditions in an ASTM G196-type test setup – The role of temperature, rotational velocity, interrupted rotation and rotational distance.

Debris expulsion as a rate determining process in fretting – The effect of slip amplitude on debris expulsion behaviour and rates (2023)
Journal Article
Zhu, T., Bennett, C. J., & Shipway, P. H. (2023). Debris expulsion as a rate determining process in fretting – The effect of slip amplitude on debris expulsion behaviour and rates. Wear, 523, Article 204818. https://doi.org/10.1016/j.wear.2023.204818

In contrast to the well-established understanding of sliding wear, recent work has clearly demonstrated that the instantaneous wear rate in fretting of metals is dependent upon the contact size due to the fact that transport of species in and out of... Read More about Debris expulsion as a rate determining process in fretting – The effect of slip amplitude on debris expulsion behaviour and rates.

Microstructure formation in the powder HIPed hardfacing alloy Tristelle 5183 (Fe-21%Cr-10%Ni-7.5%Nb-5%Si-2%C in wt%) (2021)
Journal Article
Carrington, M. J., McCartney, D. G., Shipway, P. H., & Stewart, D. A. (2022). Microstructure formation in the powder HIPed hardfacing alloy Tristelle 5183 (Fe-21%Cr-10%Ni-7.5%Nb-5%Si-2%C in wt%). Materials Characterization, 184, Article 111688. https://doi.org/10.1016/j.matchar.2021.111688

Tristelle 5183 (Fe-21%Cr-10%Ni-7%Nb-5%Si-2%C in wt%) is an alternative material to cobalt-based alloys for wear resistant hardfacing applications. In this work, gas atomised powder was consolidated by hot isostatic pressing (HIPing) at 1120 ± 10 oC w... Read More about Microstructure formation in the powder HIPed hardfacing alloy Tristelle 5183 (Fe-21%Cr-10%Ni-7.5%Nb-5%Si-2%C in wt%).

Corrigendum to ‘Understanding and modelling wear rates and mechanisms in fretting via the concept of rate-determining processes - Contact oxygenation, debris formation and debris ejection’ (Wear (2021) 486–487, (S004316482100452X), (10.1016/j.wear.2021.204066)) (2021)
Journal Article
Shipway, P. H., Kirk, A. M., Bennett, C. J., & Zhu, T. (2022). Corrigendum to ‘Understanding and modelling wear rates and mechanisms in fretting via the concept of rate-determining processes - Contact oxygenation, debris formation and debris ejection’ (Wear (2021) 486–487, (S004316482100452X), (10.1016/j.wear.2021.204066)). Wear, 488-489, Article 204161. https://doi.org/10.1016/j.wear.2021.204161

Understanding and modelling wear rates and mechanisms in fretting via the concept of rate-determining processes - Contact oxygenation, debris formation and debris ejection (2021)
Journal Article
Shipway, P. H., Kirk, A. M., Bennett, C. J., & Zhu, T. (2021). Understanding and modelling wear rates and mechanisms in fretting via the concept of rate-determining processes - Contact oxygenation, debris formation and debris ejection. Wear, 486-487, Article 204066. https://doi.org/10.1016/j.wear.2021.204066

A new framework which describes the role of three key processes in fretting wear of metals is proposed, with these three processes being: (i) oxygen transport into the contact; (ii) formation of oxide-based wear debris in the contact and (iii) ejecti... Read More about Understanding and modelling wear rates and mechanisms in fretting via the concept of rate-determining processes - Contact oxygenation, debris formation and debris ejection.

Interaction of displacement amplitude and frequency effects in fretting wear of a high strength steel: Impact on debris bed formation and subsurface damage (2021)
Journal Article
Kirk, A. M., Sun, W., Bennett, C. J., & Shipway, P. H. (2021). Interaction of displacement amplitude and frequency effects in fretting wear of a high strength steel: Impact on debris bed formation and subsurface damage. Wear, 482-483, Article 203981. https://doi.org/10.1016/j.wear.2021.203981

In previous work, fretting frequency has been observed to have a significant impact not only on wear rates, but also on the nature of fretting debris and the development of subsurface damage; however, while the “frequency effect” has been shown in so... Read More about Interaction of displacement amplitude and frequency effects in fretting wear of a high strength steel: Impact on debris bed formation and subsurface damage.

Time-dependence and exposure-dependence of material removal rates in fretting (2021)
Journal Article
Shipway, P. H. (2021). Time-dependence and exposure-dependence of material removal rates in fretting. Wear, 477, Article 203826. https://doi.org/10.1016/j.wear.2021.203826

Fretting generally results in either material removal or fatigue, or a combination of both. Although the term is rarely used now, in the early literature addressing this subject, fretting that resulted in material removal was sometimes termed “fretti... Read More about Time-dependence and exposure-dependence of material removal rates in fretting.

Contact size and debris ejection in fretting: The inappropriate use of Archard-type analysis of wear data and the development of alternative wear equations for commonly employed non-conforming specimen pair geometries (2021)
Journal Article
Zhu, T., & Shipway, P. H. (2021). Contact size and debris ejection in fretting: The inappropriate use of Archard-type analysis of wear data and the development of alternative wear equations for commonly employed non-conforming specimen pair geometries. Wear, 474-475, Article 203710. https://doi.org/10.1016/j.wear.2021.203710

It has been long understood that fretting differs from sliding wear in that the relative displacement between the bodies is generally smaller than the size of the contact between them, with debris ejection from the contact thus playing an important r... Read More about Contact size and debris ejection in fretting: The inappropriate use of Archard-type analysis of wear data and the development of alternative wear equations for commonly employed non-conforming specimen pair geometries.

Measurement of friction in galling testing – An example of its use in characterising the galling behaviour of hardfacings at ambient and elevated temperature (2021)
Journal Article
Daure, J. L., Carrington, M. J., McCartney, D. G., Stewart, D. A., & Shipway, P. H. (2021). Measurement of friction in galling testing – An example of its use in characterising the galling behaviour of hardfacings at ambient and elevated temperature. Wear, 476, Article 203736. https://doi.org/10.1016/j.wear.2021.203736

© 2021 Elsevier B.V. Galling is a category of severe adhesive wear that is defined by surface damage arising between sliding solids, distinguished by macroscopic, usually localized, roughening and creation of protrusions above the original surface. T... Read More about Measurement of friction in galling testing – An example of its use in characterising the galling behaviour of hardfacings at ambient and elevated temperature.

Microstructural characterisation of subsurface deformation and the degradation of Stellite 6 induced by self-mated sliding contact in a simulated PWR environment (2021)
Journal Article
Carrington, M. J., Daure, J., Ratia-Hanby, V. L., Zhang, D., Shipway, P. H., Stewart, D. A., & McCartney, D. G. (2021). Microstructural characterisation of subsurface deformation and the degradation of Stellite 6 induced by self-mated sliding contact in a simulated PWR environment. Tribology International, 158, Article 106899. https://doi.org/10.1016/j.triboint.2021.106899

© 2021 Elsevier Ltd Stellite 6 (Co-29.5%Cr-5%W-1.2%C in wt%) is traditionally used as a hardfacing material in the primary circuit of pressurised water reactors (PWRs) due to its good corrosion and wear resistance in water at up to 300 °C. In this st... Read More about Microstructural characterisation of subsurface deformation and the degradation of Stellite 6 induced by self-mated sliding contact in a simulated PWR environment.

Interdependence of slurry erosion wear performance and residual stress in WC-12wt%Co and WC-10wt%VC-12wt%Co HVOF coatings (2019)
Journal Article
Venter, A. M., Luzin, V., Marais, D., Sacks, N., Ogunmuyiwa, E. N., & Shipway, P. H. (2020). Interdependence of slurry erosion wear performance and residual stress in WC-12wt%Co and WC-10wt%VC-12wt%Co HVOF coatings. International Journal of Refractory Metals and Hard Materials, 87, https://doi.org/10.1016/j.ijrmhm.2019.105101

© 2019 High-velocity-oxygen-fuel deposited WC-12wt%Co and WC-10wt%VC-12wt%Co hardmetal coatings are well anchored to the mild steel substrates, giving good mechanical integrity, as well as low porosity. The mechanical integrity has been investigated... Read More about Interdependence of slurry erosion wear performance and residual stress in WC-12wt%Co and WC-10wt%VC-12wt%Co HVOF coatings.

The dependence of wear rate on wear scar size in fretting: the role of debris (third body) expulsion from the contact (2019)
Journal Article
Zhu, T., Shipway, P., & Sun, W. (2019). The dependence of wear rate on wear scar size in fretting: the role of debris (third body) expulsion from the contact. Wear, 440-441, 203081. https://doi.org/10.1016/j.wear.2019.203081

The paper ‘The third-body approach: a mechanical view of wear’ by Maurice Godet (Wear, 100 (1984), pp 437–452) was perhaps the first to articulate clearly the key role of the rate of debris expulsion from a fretting contact in controlling the overall... Read More about The dependence of wear rate on wear scar size in fretting: the role of debris (third body) expulsion from the contact.

The role of microstructural development in the hydrothermal corrosion of cast and HIPed Stellite 6 analogues in simulated PWR conditions (2019)
Journal Article
Karimi, G., Carrington, M., Thomas, J., Shipway, P., Stewart, D., & Hussain, T. (2019). The role of microstructural development in the hydrothermal corrosion of cast and HIPed Stellite 6 analogues in simulated PWR conditions. Corrosion Science, 159, Article 108141. https://doi.org/10.1016/j.corsci.2019.108141

The corrosion behaviour of cast and HIPed Stellite 6 analogue materials in PWR-simulating conditions was investigated. The cast alloy exhibited localised corrosion at the boundary between the matrix and the M7C3 carbides, with this being attributed t... Read More about The role of microstructural development in the hydrothermal corrosion of cast and HIPed Stellite 6 analogues in simulated PWR conditions.

Influence of KCl and HCl on a Laser Clad FeCrAl Alloy: In-Situ SEM and Controlled Environment High Temperature Corrosion (2019)
Journal Article
Reddy, L., Sattari, M., Davis, C., Shipway, P., Halvarsson, M., & Hussain, T. (2019). Influence of KCl and HCl on a Laser Clad FeCrAl Alloy: In-Situ SEM and Controlled Environment High Temperature Corrosion. Corrosion Science, 158, 1-10. https://doi.org/10.1016/j.corsci.2019.07.003

This study investigated the effects of HCl and KCl on a laser-clad FeCrAl coating at 450 °C in an in-situ ESEM followed by a furnace exposure. In all in-situ TEM cross-sections, three major phases were identified: an iron rich oxide, an iron-chromium... Read More about Influence of KCl and HCl on a Laser Clad FeCrAl Alloy: In-Situ SEM and Controlled Environment High Temperature Corrosion.

Comparison of the sliding wear behaviour of self-mated HIPed Stellite 3 and Stellite 6 in a simulated PWR water environment (2019)
Journal Article
Ratia, V. L., Zhang, D., Carrington, M. J., Daure, J. L., McCartney, D. G., Shipway, P. H., & Stewart, D. A. (2019). Comparison of the sliding wear behaviour of self-mated HIPed Stellite 3 and Stellite 6 in a simulated PWR water environment. Wear, 426-427(Part B), 1222-1232. https://doi.org/10.1016/j.wear.2019.01.116

Cobalt-based alloys such as Stellite 3 and Stellite 6 are widely used to protect stainless steel surfaces in primary circuit nuclear reactor applications where high resistance to wear and corrosion are required. In this study, selfmated sliding wear... Read More about Comparison of the sliding wear behaviour of self-mated HIPed Stellite 3 and Stellite 6 in a simulated PWR water environment.

The effect of frequency on both the debris and the development of the tribologically transformed structure during fretting wear of a high strength steel (2019)
Journal Article
Kirk, A. M., Shipway, P. H., Sun, W., & Bennett, C. J. (2019). The effect of frequency on both the debris and the development of the tribologically transformed structure during fretting wear of a high strength steel. Wear, 426-427(Part A), 694-703. https://doi.org/10.1016/j.wear.2018.12.035

It is well established that damage to the first bodies in fretting wear gives rise to a hard and brittle tribologically transformed structure (TTS) which can influence both wear and fatigue. While the existence and significance of TTS has been establ... Read More about The effect of frequency on both the debris and the development of the tribologically transformed structure during fretting wear of a high strength steel.

Sliding wear of a self-mated thermally sprayed chromium oxide coating in a simulated PWR water environment (2019)
Journal Article
Ratia, V., Zhang, D., Daure, J., Shipway, P., McCartney, D., & Stewart, D. (2019). Sliding wear of a self-mated thermally sprayed chromium oxide coating in a simulated PWR water environment. Wear, 426-427(Part B), 1466-1473. https://doi.org/10.1016/j.wear.2018.12.058

Bearing surfaces in the primary circuit of pressurized water reactors (PWR) are prone to damage due to aggressive chemical and tribological conditions under which they operate, and a wide range of materials have been examined in this regard. One of t... Read More about Sliding wear of a self-mated thermally sprayed chromium oxide coating in a simulated PWR water environment.

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